config-scripts/cups-compiler.m4

   1 dnl
   2 dnl "$Id: cups-compiler.m4 4953 2006-01-19 20:30:48Z mike $"
   3 dnl
   4 dnl   Compiler stuff for the Common UNIX Printing System (CUPS).
   5 dnl
   6 dnl   Copyright 1997-2006 by Easy Software Products, all rights reserved.
   7 dnl
   8 dnl   These coded instructions, statements, and computer programs are the
   9 dnl   property of Easy Software Products and are protected by Federal
  10 dnl   copyright law.  Distribution and use rights are outlined in the file
  11 dnl   "LICENSE.txt" which should have been included with this file.  If this
  12 dnl   file is missing or damaged please contact Easy Software Products
  13 dnl   at:
  14 dnl
  15 dnl       Attn: CUPS Licensing Information
  16 dnl       Easy Software Products
  17 dnl       44141 Airport View Drive, Suite 204
  18 dnl       Hollywood, Maryland 20636 USA
  19 dnl
  20 dnl       Voice: (301) 373-9600
  21 dnl       EMail: cups-info@cups.org
  22 dnl         WWW: http://www.cups.org
  23 dnl
  24
  25 dnl Clear the debugging and non-shared library options unless the user asks
  26 dnl for them...
  27 OPTIM=""
  28 AC_SUBST(OPTIM)
  29
  30 AC_ARG_WITH(optim, [  --with-optim="flags"    set optimization flags ])
  31
  32 AC_ARG_ENABLE(debug, [  --enable-debug          turn on debugging, default=no],
  33         [if test x$enable_debug = xyes; then
  34                 OPTIM="-g"
  35         fi])
  36
  37 AC_ARG_ENABLE(pie, [  --enable-pie            use GCC -fpie option, default=no])
  38
  39 dnl Update compiler options...
  40 CXXLIBS=""
  41 AC_SUBST(CXXLIBS)
  42
  43 if test -n "$GCC"; then
  44         if test -z "$OPTIM"; then
  45                 if test "x$with_optim" = x; then
  46                         # Default to optimize-for-size and debug
  47                         OPTIM="-Os -g"
  48                 else
  49                         OPTIM="$with_optim $OPTIM"
  50                 fi
  51         fi
  52
  53         if test $PICFLAG = 1 -a $uname != AIX; then
  54                 OPTIM="-fPIC $OPTIM"
  55         fi
  56
  57         case $uname in
  58                 Darwin*)
  59                         if test "x$with_optim" = x; then
  60                                 if test "x`uname -m`" = xi386; then
  61                                         # Build universal binaries for OSX on Intel...
  62                                         OPTIM="-arch i386 -arch ppc $OPTIM"
  63                                         DSOFLAGS="-arch i386 -arch ppc $DSOFLAGS"
  64                                 fi
  65                         fi
  66                         ;;
  67
  68                 Linux*)
  69                         if test x$enable_pie = xyes; then
  70                                 OPTIM="$OPTIM -fpie"
  71                                 LDFLAGS="$LDFLAGS -pie"
  72                         fi
  73                         ;;
  74         esac
  75
  76         if test "x$with_optim" = x; then
  77                 # Add useful warning options for tracking down problems...
  78                 OPTIM="-Wall -Wno-format-y2k $OPTIM"
  79                 # Additional warning options for alpha testing...
  80                 OPTIM="-Wshadow -Wunused $OPTIM"
  81         fi
  82 else
  83         case $uname in
  84                 AIX*)
  85                         if test -z "$OPTIM"; then
  86                                 if test "x$with_optim" = x; then
  87                                         OPTIM="-O2 -qmaxmem=6000"
  88                                 else
  89                                         OPTIM="$with_optim $OPTIM"
  90                                 fi
  91                         fi
  92                         ;;
  93                 HP-UX*)
  94                         if test -z "$OPTIM"; then
  95                                 if test "x$with_optim" = x; then
  96                                         OPTIM="+O2"
  97                                 else
  98                                         OPTIM="$with_optim $OPTIM"
  99                                 fi
 100                         fi
 101
 102                         CFLAGS="-Ae $CFLAGS"
 103
 104                         if test "x$with_optim" = x; then
 105                                 OPTIM="+DAportable $OPTIM"
 106                         fi
 107
 108                         if test $PICFLAG = 1; then
 109                                 OPTIM="+z $OPTIM"
 110                         fi
 111                         ;;
 112                 IRIX)
 113                         if test -z "$OPTIM"; then
 114                                 if test "x$with_optim" = x; then
 115                                         OPTIM="-O2"
 116                                 else
 117                                         OPTIM="$with_optim $OPTIM"
 118                                 fi
 119                         fi
 120
 121                         if test $uversion -ge 62 -a "x$with_optim" = x; then
 122                                 OPTIM="$OPTIM -n32 -mips3"
 123                         fi
 124
 125                         if test "x$with_optim" = x; then
 126                                 # Show most warnings, but suppress the
 127                                 # ones about arguments not being used,
 128                                 # string constants assigned to const
 129                                 # char *'s, etc.  We only set the warning
 130                                 # options on IRIX 6.2 and higher because
 131                                 # of limitations in the older SGI compiler
 132                                 # tools.
 133                                 if test $uversion -ge 62; then
 134                                         OPTIM="-fullwarn -woff 1183,1209,1349,3201 $OPTIM"
 135                                 fi
 136                         fi
 137                         ;;
 138                 SunOS*)
 139                         # Solaris
 140                         if test -z "$OPTIM"; then
 141                                 if test "x$with_optim" = x; then
 142                                         OPTIM="-xO4"
 143                                 else
 144                                         OPTIM="$with_optim $OPTIM"
 145                                 fi
 146                         fi
 147
 148                         if test "x$with_optim" = x; then
 149                                 # Specify "generic" SPARC output and suppress
 150                                 # all of Sun's questionable warning messages...
 151                                 OPTIM="-w $OPTIM -xarch=generic"
 152                         fi
 153
 154                         if test $PICFLAG = 1; then
 155                                 OPTIM="-KPIC $OPTIM"
 156                         fi
 157                         ;;
 158                 UNIX_SVR*)
 159                         # UnixWare
 160                         if test -z "$OPTIM"; then
 161                                 if test "x$with_optim" = x; then
 162                                         OPTIM="-O"
 163                                 else
 164                                         OPTIM="$with_optim $OPTIM"
 165                                 fi
 166                         fi
 167
 168                         if test $PICFLAG = 1; then
 169                                 OPTIM="-KPIC $OPTIM"
 170                         fi
 171                         ;;
 172                 *)
 173                         # Running some other operating system; inform the user they
 174                         # should contribute the necessary options to
 175                         # cups-support@cups.org...
 176                         echo "Building CUPS with default compiler optimizations; contact"
 177                         echo "cups-bugs@cups.org with uname and compiler options needed"
 178                         echo "for your platform, or set the CFLAGS and CXXFLAGS"
 179                         echo "environment variable before running configure."
 180                         ;;
 181         esac
 182 fi
 183
 184 if test $uname = HP-UX; then
 185         # HP-UX 10.20 (at least) needs this definition to get the
 186         # h_errno global...
 187         OPTIM="$OPTIM -D_XOPEN_SOURCE_EXTENDED"
 188
 189         # HP-UX 11.00 (at least) needs this definition to get the
 190         # u_short type used by the IP headers...
 191         OPTIM="$OPTIM -D_INCLUDE_HPUX_SOURCE"
 192 fi
 193
 194 dnl
 195 dnl End of "$Id: cups-compiler.m4 4953 2006-01-19 20:30:48Z mike $".
 196 dnl